A giant crococile versus a giant snake in a Colombian coal mine? It sounds even more awesome than "Mega Shark Versus Giant Octopus", except the real life version does not have Debbie Gibson.An ancient crocodile relative, a dyrosaurid now named Acherontisuchus guajiraensis, likely gave the world's largest snake a tussle or two. In Palaeontology, University of Florida researchers describe the new 20-foot extinct species which was discovered in the same Colombian coal mine as Titanoboa cerrejonensis, the world's largest snake. read more